Linux Mail Server Setup and Howto Guide

This article will show you how to configure Postfix and Dovecot to handle multiple domains stored in MySQL. Postfix Admin is used to manage the domains, mailboxes and aliases in MySQL. See How to Install Postfix Admin to setup the MySQL database that will be used by Postfix and Dovecot.

Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases. This article will show you how to install Postfix Admin to simplify management of mailboxes, domains and aliases.

The version of Postfix that comes with Red Hat Enterprise Linux 5 or CentOS 5 does not support MySQL lookups. You can build your own custom Postfix RPM or get a prebuilt RPM from the CentOS Plus repository. You can use the CentOS repository in RHEL since CentOS is binary compatible with RHEL. This article describes how to install Postfix with MySQL lookup table support from the CentOS Plus repository.

This article describes how to achieve single sign on with Active Directory using Identity Management for Unix (available in Windows 2003 R2 and above) or Services for Unix 3.5.

389 Directory Server formerly the Fedora Directory Server is an enterprise-class open source LDAP server for Linux. This article will show you how to setup the 389 Directory Server.

This article will show you how to setup an LDAP address book using OpenLDAP, an open source implementation of the Lightweight Directory Access Protocol.

SMTP Authentication (SMTP Auth) provides an access control mechanism that can be used to allow legitimate users to relay mail while denying relay service to unauthorized users, such as spammers.

The Postfix Cyrus SASL support is used to authenticate remote SMTP clients to the Postfix SMTP server. Thanks to the Pluggable Authentication Modules (PAM) in Linux, we can configure Cyrus SASL to delegate the authentication process to an Active Directory server.

LDAP authentication is available in Dovecot starting version 1.0. Since Active Directory is an implementation of LDAP directory services, we can use the LDAP authentication to authenticate Dovecot against an Active Directory server. But for users of Dovecot prior to 1.0 or those having problems with LDAP authentication, we can instead use the Kerberos authentication mechanism in Windows via the Linux PAM.

This guide will show you how to integrate Active Directory/LDAP into Postfix and Dovecot. In this page, you will learn how to enable Postfix to lookup email addresses in LDAP and how to enable Dovecot to authenticate to an LDAP server.